
<div class="fluent-multi-splitter" orientation="horizontal" b-ug2ltnxcve="" blazor:elementreference="">
  <div id="xxx" status="resizable" class="fluent-multi-splitter-pane" style="flex-basis: 40%;" data-index="0">Pane A</div>
  <div class="fluent-multi-splitter-bar" status="resizable" blazor:onmousedown="1" blazor:onclick:preventdefault="" blazor:onclick:stoppropagation="">
    <span part="resize"></span>
  </div>
  <div id="xxx" status="lastresizable" class="fluent-multi-splitter-pane" style="flex-basis: 60%;" data-index="1">Pane B</div>
</div>